body {
    color: #666;
    line-height: 25px;
    font-weight: 400;
    font-family: '微软雅黑','宋体','Open Sans', sans-serif;
}
.modal-body ul {
    list-style-type: none;
    margin-left: 0px;
    padding-left: 0px;
}
.modal-body ul li {
    padding: 5px 0px;
}
.knowledge-title {
    background-color: #EEE;
    padding: 2px 10px;
    margin-bottom: 20px;
    cursor: pointer;
    border: 1px solid #FFF;
    border-radius: 4px;
}